World 1 (Jeansowaty Levels)
Mario taking out some Buzzy Beetles in 1-1.
World 1 in the hack Super Mario Bros - Jeansowaty Levels is the first world of the game.The world is fairly easy,even to new players.
1-1 is a short level.On the beginning you will encounter two Green Koopa Troopa's walking under some '?' blocks in a 'X' shape.